/*Copyright (C) 2024  深圳极向量科技有限公司 All Rights Reserved.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Affero General Public License for more details.

You should have received a copy of the GNU Affero General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.*/

package neatlogic.framework.util.pdf;

import com.itextpdf.text.Document;
import com.itextpdf.text.Element;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfWriter;

/**
 * 添加页码事件
 */
public class AddPageNumberEvent extends PdfPageEventHelper {

    @Override
    public void onEndPage (PdfWriter writer, Document document) {
        //设置页脚页码
        float x = (document.left() + document.right()) / 2;
        ColumnText.showTextAligned(writer.getDirectContent(), Element.ALIGN_CENTER, new Phrase(writer.getPageNumber() + ""),
                x, document.bottom() - 40, 0);
    }
}
